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Posted By: crusoeThe science has moved on and it is apparent that OPC damages the foil layer
Posted By: borpinWell bugger me - about 2 days too late for half my floor area!!! All carefully taped etc before the concrete went in. Never mind - should last 30 years? I'll put it in for the rest. Asked the architect about it but he was not aware of this even though (when I looked carefully) it is part of the BBA Cert!!
Pugliese - is the lack of layer required due to the insulation, or the fact of the medium being concrete?
Posted By: DantenzPosted By: crusoeThe science has moved on and it is apparent that OPC damages the foil layerYes, polythene membrane should be used as a de-coupling membrane between the screed and the foil for the very reason you have stated.
Posted By: PugliesePugliese - is the lack of layer required due to the insulation, or the fact of the medium being concrete?Suspect it will be the insulation as it is so tough you can happily jump up and down on it, but for a definitive answer I'll find out and report back.
Posted By: PuglieseAttached is a pic - sorry it is not the best but gives you an idea20120808_091520 (2).jpg
Posted By: crusoewww.thomasarmstrong.co.uk
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